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Rhubarb tarts with hazelnut shortbread, hazelnut cream, candied rhubarb, and rhubarb jelly.
These tarts combine hazelnut shortbread, hazelnut cream, rhubarb jelly, and candied rhubarb in a calisson-style shape.
The tarts include:
The hazelnut shortbread forms the base and the hazelnut cream bakes inside the shell. Rhubarb jelly is added after baking, then the candied rhubarb is arranged on top.
The jelly and candied rhubarb can be prepared ahead. Use vivid rhubarb if you want a stronger red finish.
Can I replace rhubarb juice?
Yes. Raspberry juice or strawberry-rhubarb juice can be used, but the flavour and colour will change.
This tart works because each layer contributes something different instead of repeating the same fruit note. The hazelnut shortbread gives a firmer base, the hazelnut cream softens the interior, and the rhubarb brings acidity through both the jelly and the candied topping. When the rhubarb is arranged neatly, the tart also slices more cleanly because the topping sits in an even pattern.
Serve this tart chilled or cool rather than fully cold from the refrigerator, which can mute the hazelnut flavour. It suits spring dessert tables, afternoon pastry service, and smaller plated slices where the layered structure is more visible. Any leftover rhubarb jelly can also be used under fresh fruit on other tart shells.
When arranging the rhubarb, overlap the strips enough to create coverage but not so much that they form a thick mat on top. Keeping the finish light lets the hazelnut layers and the rhubarb acidity stay in better proportion.
Rhubarb tarts with hazelnut shortbread, hazelnut cream, candied rhubarb, and rhubarb jelly.

Freeze shortbread dough for cleaner lines when cutting.
Use vivid red rhubarb for the most dramatic finish.
Blend the jelly twice for a smoother texture.
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Preheat oven to 175°C. Cream butter and sugar in a stand mixer until crumbly.
Add egg gradually, then mix in salt, baking powder, flour, and ground hazelnuts.
Roll to 3 mm thickness and line calisson pastry rings. Trim excess.
Bake for 20 minutes and cool.
Cream softened butter, sugar, and ground hazelnuts.
Add eggs gradually until incorporated.
Refrigerate for 30 minutes before using.
Bring rhubarb juice to a boil.
Mix sugar, agar, and xanthan, then add to the juice.
Blend with an immersion blender and chill until set.
Blend again before filling.
Peel rhubarb, trim ends, and vacuum-seal.
Cook sous vide at 63°C for 2 hours.
Cool, remove from the bag, and dice finely.
Preheat oven to 170°C.
Fill tart shells with hazelnut cream and half the candied rhubarb.
Bake for 8 minutes, then cool for 15 minutes.
Top with blended rhubarb jelly and chill for 30 minutes.
Arrange candied rhubarb pieces in a calisson-petal design.
12/4/2025
My calisson shapes were uneven, but the flavour still worked well.
12/3/2025
The hazelnut cream baked well. A bit technical, but manageable.
12/2/2025
The rhubarb jelly and hazelnut base worked well together.
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Serving Size: 1 tart
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
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